Discovering New Prognostic Features for the Harmonic Reducer in Remaining Useful Life Prediction

Table 4

KPCA and RUL values of some samples during the degradation process.

Operations (hours/min)	KPCA1	KPCA2	KPCA3	KPCA4	RUL (min)
10	−0.0049	−0.0411	0.0434	−0.0618	611
50	−0.0251	−0.0440	0.0449	−0.0115	571
100	−0.0354	−0.0225	0.0074	0.0307	521
300	−0.0095	0.0345	−0.0096	−0.0165	321
500	0.0445	−0.0070	0.0145	0.0376	121
600	0.0131	−0.0330	−0.0530	−0.0733	21